Alignment: Service and Repair
PRELIMINARY INSPECTIONWARNING: Always adjust the alignment with the vehicle on a flat surface.
NOTE: If alignment is out of specification, inspect and replace any damaged or worn rear suspension parts before making any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. "Unladen conditions" means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in their designated positions.
2. Check the tires for incorrect air pressure and excessive wear
3. Check the wheels for run out and damage.
4. Check the wheel bearing axial end play.
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height.
- For air leveling vehicles, verify the level using Consult-II memory register 1103 and set to 0 ± 10 mm (0 ± 0.39 inches) as necessary.
CAMBER AND CASTER
1. Measure camber and caster of both the right and left wheels with a suitable alignment gauge and adjust as necessary to specification.
2. If outside of the specified value, adjust camber and caster using the adjusting bolts in the lower links.
CAUTION: After adjusting the camber then check the toe-in.
NOTE: Camber changes about 3' (0.11°) minutes with each graduation of one adjusting bolt. Refer to table for examples of lower link adjusting bolt effect on camber and caster.
3. Tighten the adjusting bolt nuts to specification.
TOE-IN
WARNING:
- Always perform the following procedure on a flat surface.
- Make sure that no person is in front of the vehicle before pushing it.
1. Bounce the front of vehicle up and down to stabilize the vehicle height (posture).
2. Push the vehicle straight ahead about 5m (16 ft).
3. Put a mark on base line of the tread (rear side) of both front tires at the same height as hub center as shown. These marks are measuring points. A
4. Measure the distance "A" on the rear side of the front tires as shown.
5. Push the vehicle slowly ahead to rotate the wheels 180° (1/2 a turn).
CAUTION: If the wheels have rotated more than 180° degrees (1/2 turn), start this procedure again from the beginning. Never push the vehicle backward.
6. Measure the distance "B" on the front side of the front tires at the same marks as shown. Total toe-in is calculated as "A" - "B".
7. Adjust the toe-in by varying the length of the steering outer tie rods.
a. Loosen the outer tie-rod lock nuts.
b. Adjust the toe-in by screwing the outer tie-rods in or out.
c. Tighten the outer tie-rod lock nuts to specification.
FRONT WHEEL TURNING ANGLE
1. Set wheels in straight-ahead position. Then move vehicle forward until front wheels rest on turning radius gauge properly
2. Rotate steering wheel all the way right and left; measure turning angle.